# 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで vs LabNote Chem

The clearest difference is in-app purchases: 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで at none against LabNote Chem's 1. 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで also leads on iOS requirement (13.0 vs 15.1). LabNote Chem's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. LabNote Chem sells 1 one-off in-app purchase. 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで asks for nothing beyond the download.

中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで ships an update every 3 weeks, LabNote Chem monthly. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで | LabNote Chem |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 37 MB | 118 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masayuki Suda](https://appshunter.io/developer/953362137) | [Satoshi Kobayashi](https://appshunter.io/developer/1866585930) |

## What reviewers say

### 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで

[App page](https://appshunter.io/ios/app/id6748364075)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### LabNote Chem

[App page](https://appshunter.io/ios/app/labnote-chem/id6757393090)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LabNote Chem Pro | $11.99 | one-time |


## Frequently asked questions

### Is 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで free?

中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで is free to download, with no in-app purchases.

### Is LabNote Chem free?

LabNote Chem is free to download, with in-app purchases available.

### Do 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで or LabNote Chem have ads?

中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで shows ads; LabNote Chem does not.

### Which is updated more often, 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで or LabNote Chem?

中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで ships an update every 3 weeks, and LabNote Chem monthly. Most recently, 中学生の英単語チャレンジ　英語基礎から難関高校入試レベルまで was updated on October 2, 2026 and LabNote Chem on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*